Home / 69,679,940.96-104,513,157.38-21,158,221.26

Finding the Fourth Proportional to 69,679,940.96, 104,513,157.38 and 21,158,221.26

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Solution

The fourth proportional to 69,679,940.96, 104,513,157.38 and 21,158,221.26 is: 31,735,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679,940.96 : 104,513,157.38 = 21,158,221.26 : x
  2. Step 2: Convert to fraction form
    69,679,940.96/104,513,157.38 = 21,158,221.26/x
  3. Step 3: Cross multiply
    69,679,940.96x = 104,513,157.38 × 21,158,221.26
  4. Step 4: Simplify right side
    69,679,940.96x = 2,211,312,508,427,242
  5. Step 5: Solve for x
    x = 2,211,312,508,427,242/69,679,940.96
  6. Step 6: Final answer
    x = 31,735,281.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.